Coin operated lung tester



(No Model.) I 3 Sheets-Sheet 1. G. R. BEGKWITHlSz W. F. McCOLLUM.

COIN OPERATED LUNG TESTER.

Patented Dec. 19, 1893.

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(No Model.) I 3 SheetsSheet 2. G. R. BEOKWITH 8: W. F. McGOLLUM.

COIN OPERATED LUNGTBSTER.

No. 511,285. Patented Dec. 19,1893.

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3 Sheets-Sheet 3. G. R. BECKWITH & W. F. MOCOLLUM.

(No Model.)

COIN OPERATED LUNG TESTER.

Patented Dec. 19 1893.

a 4 2 I 4 I I l 6 i frbrentorJ. Grove jaB rflmitlz/ v NITED 1 STATESPATENT FFICEG' GROVE R. BEOKWITH AND WVILLIAM F. MCCOLLUM, OFMINNEAPOLIS,

- MINNESOTA.

COIN-OPERATED LUNG-TESTER.

SPECIFICATION forming m of Letters Patent No. 511,285, dated December19, 1893.

Application filed May 15, 1893. 7 Serial No. 474,172. (No model.)

Testers, of which the following is aspecification.

This invention relates to improvements in devices designed to be put inreadiness for operation by the insertion of a suitable coin;.

and the objects we have in view are to provide a machine of this classto be used for testing a persons lungs.

. Another object is to provide a mechanism that upon the operation ofthe machine will exhibit a picture or photograph to the person operatingthe machine, and will also deliver a card upon which may be placed apicture and also suitable printed matter which may be of any suitablecharacter.

The invention consists generally in the constructions and combinationshereinafter described and particularly pointed out in the claims, andwill be more readily understood by reference to the accompanyingdrawings,

forming part of this specification,in which- Figure 1 is an elevation ofour improved device with the outer casing removed. Figs. 2 and 3 aredetails of themechanism for connecting the rotating drum with themovable weight. Fig. 4 is a partial sectional elevation. Fig. 5 is aview of the dial and pointer. Fig.

' 6 is a view showing the vertical scale and its pointer and showingalso the space above the scale where the picture is exhibited. Fig. 7 isa detail showing the sliding plate carrying the picture. Figs. 8 and 9are details of the rotating drum. Figs. 10 and 11 are details showingthe card that is delivered by the machine.

In the drawings, 2 represents a drum or cylinder arranged in a suitablecasing 3 and divided into a suitable number of compartments by means ofthe transverse partitions 5. This wheel is designed to berotated by theair current by blowing througha suitable tube'7, the end9 of which comesopposite the circumference of the drum in such position as to cause theair current to impinge upon one of the partitions 5 and thereby torotate said drum. As the airis blown into the compartment formed betweenany two of the partitions it is more or less compressed, and as thewheel revolves each compartment passes a suitable opening 11 in thecasing through which the surplus air escapes, so that as eachcompartment is brought back to a position in front of the nozzle 9 theair thereinis of normal density. The drum 2is mounted upon a sleeve 13that is secured uponasuitable shaft 15, and said sleeve has securedthereon a disk 17 provided with a pivoted arm or rod 19 extendingparallel with said shaft. This arm is provided with the heel 21 whichprevents the opposite end of the rod or arm from being raised too' farfrom the shaft. Mounted upon the shaft 15 is a second sleeve 23 to whichis secured the ratchet wheel 25. The arm 19 engages with one of theteeth of the ratchet wheel 25 and while so engaged the rotation of theshaft 15 and the sleeve 13 causes the sleeve 23 to be rotated therewith.The cord 27 has its end attached to and is adapted to be wound upon thesleeve 23, and said cord passes over a suitable wheel or pulley 29 andis connected by means of the pulleys 31 and ,able box withinwhich asuitable number of shot 37 or other heavy substance is placed.

This box is preferably provided with the guides 39' extending throughit, and is adapted to slide vertically upon the guide rods 41. A safetydog or trip 43 is pivotally supported upon a standard 45 in closeproximity to the sleeve 13. This trip is provided with the downwardlyprojecting curved arm 47 and with the straight projection or lug 49 atits upper part. As the shaft 15 and sleeve 13 are rotated by the forceof the air current passing into the drum 2 the arm 19 remains inengagement with the ratchet wheel 25 and the sleeve 23 is rotatedtherewith and thereby the weight 35 is raised. As soon, however, as theair current ceases and the weight 35 reverses the movement of thesleeves 23 and 13, turning the disk 17 and ratchet wheel 25 backward andmoving thearm-19 therewith, the arm 19 now rides up over the upperinclined surface of the trip l3 into the notch or space between the mainportion of said trip and the lug 49. This causes the arm 19 to bedisengaged from the ratchet wheel and permits the weight to immediatelydescend to its lowest position, the cord 27 unwinding from the sleeve23.

Upon the shaft 28 of the wheel 29 is preferably arranged a pointer 30,which moves over a suitably graduated dial 32, and the highest number towhich the pointer moves in the rotation of the shaft 23 indicates thecapacity in cubic inches of the lungs of the person using the machine.

In addition to the dial already shown, we also prefer to provide a scale51 having a pointer 53 arranged to move over said scale, said pointerbeing attached to the weight 35. As the weight moves up the pointermoves over the scale. Arranged in the rear of said scale 51 is a slide57 preferably having a picture or photograph thereon. This picture whenthe device is not in use is entirely concealed behind the scale 51. Thepointer 53 passes through a slot 59 in a sliding plate 61 arranged belowthe slide carrying the photo graph or picture. On the first movement ofthe weight the pointer moves in the slot 59 and does not raise thepicture 57. As soon, however, as the pointer reaches the end of the slot59 the picture begins to move upward and when the weight has reached itshighest point the picture is fully displayed above the scale 51.

Ne also prefer to provide the receptacle 62 adapted to contain a numberof cards, upon one side of which may be a suitable picture and upon theother may be a prophetic sentence or statement, or any other desiredprinted matter. The receptacle 62 is provided at its lower end with theslot 63 and in front of the exit slot is the inclined trough or way 65.An ejector plate 67 is arranged to move through the rear slot 63 in thereceptacle 62 and push the lower card out of said receptacle into thechute through which the card slides to the outside of the casing of themachine. This ejector is preferably connected to the pivoted lever 69and said lever is connected by a rod 71 to the bell crank lever 73.Secured upon the weight 35 is the pivoted dog 75 provided with theoutwardly projecting arm that engages the lower arm of the bell cranklever 73 as said weight is raised. The arm 77 is also preferablyconnected with the weight 35 and when the weight returns to its lowestposition said arm 77 engages the bell crank lever 73 and draws down thelower arm of said lever and withdraws the ejector 67, thus permittingthe cards to drop down onto the plate 79 which forms the bottom of thereceptacle 62, in position for the next operation.

For the purpose of locking the weight at all times except after the coinhas been inserted, we provide any suitable locking device that may bereleased upon the insertion of a suitable coin. As here shown, we haveprovided a chute 81 through which the coin is inserted, and at the lowerend of this chute is the pivoted dog 83 adapted to engage the weight 35or a lug S5 thereon. This looks the weight 35 and prevents its beingmoved upward until the proper coin has been put into the machine. Thisdog is provided with the rearwardly extending loop 87 arranged directlybelow the end of the chute 81 so that when the coin passes through thechute it rests upon said loop 87 and the weight of the coin issufficient to tip back the dog 83 until it disengages the weight. erablymade double and the weight is provided with the curved arm 91 projectingbetween the two parts of said dog and beneath the space between the twoparts of the loop 87, so that when the weight is moved upward this armencounters the edge of the coin and throws said coin over the loop 87and it then drops into a suitable receptacle. When the weight isreturned to its lowest position the dog 83 engages said weight and againlooks it in its lowest position.

1t will be understood that the entire mechanism is designed to beinclosed in a suitable casin g 4, a portion of which is shown in Fig. 4.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. The combination, with the rotating drumprovided with a series of partitions, of the casing for said drum, thetube arranged to direct the current of air against the partitions insaid drum, the weight arranged to be operated by the movement of saiddrum, asuitable scale, and a pointer operated by said mechanism, and acoin controlled. look ing device for said weight, substantially asdescribed.

2. The combination, with the rotating drum provided with a series ofcompartments, of the casing containing said drum, the tube for directinga current of air against the partitions in said drum whereby said drummay be rotated, the movable weight, the cord connected to said weightand connected to a sleeve operated by said drum, an indicating mechanismoperated by the movement of said weight, and a coin controlled lockingde vice for said mechanism, substantially as described.

3. The combination,with the rotating drum, of the casing therefor, thetube for directing a current of air against the partitions in said drum,a suitable weight, means connecting said drum with said weight, andmeans for disconnecting the drum and weight when the air current isdiscontinued, substantially as described.

4. The combination,with the rotatable drum provided with the series ofpartitions, of the inclosing casing, the tube for directinga current ofair against the partitions of said drum, the movable weight, meansconnecting said drum with said weight, a coin controlled lock- The dog33 is prefing device for said weight, and the slide carrying a suitablepicture arranged to be displayed by the movement of said weight,substantially as described.

' 5. 'lhecombination,withtherotatable drum, of its inclosing casing, thetube'for directing a current of air against the partitions of said drum,the movable weight, means connecting said weight with said drum, acoin-controlled mechanism for said weighga card receptacle, and a card,ejector arranged to be operated by the movement of said weight,substantially as described.

6. The combination,with the rotatable drum provided with the series ofpartitions, of the tube for directinga current of air against thepartitions of said drum, the shaft '15 provided with the sleeve 13 uponwhich said drum is mounted, the sleeve 23 also mounted upon said shaft,the movable weight, the cord connected to said weight and mounted uponthe sleeve 23, means connecting said sleeves 13 and 23 whereby theyrotate together as said drum is rotated, and means for-disconnecting--the sleeve 23 from the sleeve 13 when the air 2 5 current for rotatingsaid drum is discontinued,

substantially as described.

In testimony whereof we have hereunto set 40 our hands this 8th day ofMay, 1893.

GROVE R. BEOKWITH. WILLIAM F. MOCOLLUM. In presence of- A. 0. PAUL, J.S. INGALLS.

